<template>
	<view>
		<view class="feedback-title">意见反馈：</view>
		<view class="feedback-content"><textarea v-model="content" class="feedback-textarea" placeholder="请输入您要反馈的问题" /></view>
		<view class="feedback-title">反馈图片：</view>
		<view class="feedback-image-box">
			<view class="feedback-image-item" v-for="(item, index) in imgList" :key="index">
				<view class="close-icon" @click="delImg(item)"><uni-icons type="closeempty" size="18" color="#fff"></uni-icons></view>
				<view class="image-box"><image :src="item.url" mode="aspectFill"></image></view>
			</view>
			<view class="feedback-image-item" v-if="imgList.length < 5" @click="addImage">
				<view class="image-box"><uni-icons type="plusempty" size="50" color="#eee"></uni-icons></view>
			</view>
		</view>
		<button class="feedback-button" type="primary" @click="submit">提交反馈意见</button>
	</view>
</template>

<script>
export default {
	data() {
		return {
			imgList: [],
			content: ''
		};
	},
	methods: {
		addImage() {
			let count = 5 - this.imgList.length;
			uni.chooseImage({
				count,
				success: result => {
					const { tempFilePaths } = result;
					tempFilePaths.forEach(item => {
						if (this.imgList.length < 5) {
							this.imgList.push({
								url: item
							});
						}
					});
				}
			});
		},
		delImg(item) {
			this.imgList = this.imgList.filter(img => img.url !== item.url);
		},
		async submit() {
			let imagesPath = [];
			uni.showLoading();
			for (let i = 0; i < this.imgList.length; i++) {
				const filePath = await this.uploadFile(this.imgList[i].url);
				imagesPath.push(filePath);
			}
			this.updateFeedback({
				content: this.content,
				feedbackImages: imagesPath
			});
		},

		async uploadFile(filePath) {
			const result = await uniCloud.uploadFile({
				filePath: filePath
			});
			return result.fileID;
		},
		updateFeedback({ content, feedbackImages }) {
			this.$api
				.update_feedback({ content, feedbackImages })
				.then(res => {
					uni.hideLoading();
					uni.showToast({
						title: '反馈提交成功',
						icon: 'none'
					});
					setTimeout(() => {
						uni.switchTab({
							url: '/pages/tabBar/my/my'
						});
					}, 2000);
				})
				.catch(() => {
					uni.hideLoading();
					uni.showToast({
						title: '反馈提交失败 ',
						icon: 'none'
					});
				});
		}
	}
};
</script>

<style lang="scss">
.feedback-title {
	margin: 15px;
	margin-bottom: 0;
	font-size: 14px;
	color: #666;
}

.feedback-content {
	margin: 15px;
	padding: 10px;
	box-sizing: border-box;
	border: 1px #eee solid;
	.feedback-textarea {
		font-size: 12px;
		width: 100%;
		height: 100px;
	}
}
.feedback-image-box {
	display: flex;
	flex-wrap: wrap;
	padding: 10px;
	.feedback-image-item {
		position: relative;
		width: 33.33%;
		height: 0;
		padding-top: 33.33%;
		box-sizing: border-box;
		.close-icon {
			display: flex;
			justify-content: center;
			align-items: center;
			position: absolute;
			right: 0;
			top: 0;
			width: 22px;
			height: 22px;
			border-radius: 50%;
			background-color: #ff5a5f;
			z-index: 2;
		}
		.image-box {
			display: flex;
			justify-content: center;
			align-items: center;
			position: absolute;
			top: 5px;
			right: 5px;
			bottom: 5px;
			left: 5px;
			border: 1px #eee solid;
			border-radius: 5px;
			overflow: hidden;
			image {
				width: 100%;
				height: 100%;
			}
		}
	}
}
.feedback-button {
	margin: 0 15px;
	background-color: $news-color;
}
</style>
